| EPSRC Reference: |
GR/S73709/01 |
| Title: |
Vibro-Acoustic Transmission in Buildings due to Mechanical Services |
| Principal Investigator: |
Gibbs, Professor BM |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Architecture |
| Organisation: |
University of Liverpool |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
05 January 2004 |
Ends: |
04 January 2007 |
Value (£): |
197,597
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| EPSRC Research Topic Classifications: |
| Acoustics |
Building Ops & Management |
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| EPSRC Industrial Sector Classifications: |
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Summary on Grant Application Form |
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The aim of the proposal is to provide a method of predicting the sound levels in buildings due to installed mechanical services and domestic appliances.Previously, the complexity of the sound transmission process, which involves simultaneous airborne, structure-borne and pipe-borne transmissions, has prevented the development of measurement and prediction methodologies of use to manufacturers, building engineers and legislators concerned with noise control.This shortfall now can be addressed as a result of two recent developments. The first is in vibro-acoustic source characterisation, where complicated source excitations and geometries can be represented by simplified and reduced expressions. The second is in a newly formulated standards prediction framework, which seeks to link the vibration transmission into floors and walls, to the resultant radiated sound in the building.In this study, the vibration transmission into buildings, through supporting floors and connecting walls and through pipe-work, will be quantified in terms of the full mobility matrix formulation. The research laboratories at both Liverpool and Stuttgart will be used to experimentally verify the predicted total power for each installation.Data reductions and simplifications in the formulations then will be considered which yield the transmitted vibration power with the required accuracy.A plate reception test procedures will be developed, which will reduce the multiplicity of power transmissions, through all contacts and components of vibration, to a single-value power term. A predictive model will be developed, which incorporates this single value to obtain the resultant sound pressure levels in buildings.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.liv.ac.uk |